All our BOVs are thoroughly tested to make sure the valve opens and closes properly
at the set rates on the springs. The allowable errors for opening and closing
of the valves are controlled within 2% more or less. The servicing life of springs
and diaphragms used for the BOV lasts for 200,000 times of operation (open and
close) under 200C (or 392F). Materials used for making BOV are high quality
aluminum alloy.
All our BOVs have been tested strictly before selling, without any claims from
our customers all over the world.

Accessories: flanges, bolts and gaskets are included